Aloaha sign! is an excellent tool to validate PDF, d2d, p7m, xmldsig and PKCS #7 signatures.
Furthermore it is possible to digitally sign virtually any filetype with any native supported smartcard.
Validation of digital Signatures:
PDF (PKCS #1, PKCS #7 attached und detached)
P7M / SMIME
D2D (Arztbrief / Doctor 2 Doctor Letter)
Online Revocation checks
Offline Revocation checks
Certificate status information
sign! is included as programming library/component
to be integrated into other applications!
FreewareFiles tested Aloaha Sign 5.0.260 on 2013-04-16 using leading
antivirus scanners and found it 100% Clean. It does not contain any form
of malware, spyware, viruses, trojans, etc. We will re-test each updated
version and remove the award as well as the program if found infected.